David, I have been doing Ivory for over 30 years. My choice is PVC-E with Titanium Dioxide mixed in. I've used everything imaginable, but find this the best glue. If you make a mistake in alignment, etc., it can be un-done with a wet rag and hot iron. PVC-E gives you sufficient time to align and clamp. BTW, the clamping plates, obtained from the supply houses are worthless! I'll send a photo of the clamps I use. They are made out of anodized aircraft grade aluminum, 1/4" thick. You will only need 3-6 of them to do your repairs. Best Regards, Joe Garrett, RPT, (Oregon) Been There, Didn't Like It, So I'm Here To Stay! [G}
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